Laser Performance of Some Oxazole Laser Dyes in Restricted Matrices

Sakr, Mahmoud A. S.; Gawad, Sayed A. Abdel; Kana, Maram T.H. Abou; Ebeid, El-Zeiny M.

doi:10.1007/s10895-017-2058-6

Cited by 10 publications

(5 citation statements)

References 34 publications

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“…Hence, the effective number of electrons transferred from the ground to the excited states in sol-gel is lower than in photosol-gel. While the oscillator strength value in the solution state is less than that of the solid state (0.15), both the absorption cross section(σa) and oscillator strength values ( f ) were calculated [ 39 ] (details in Table 1 ). Also displayed in Table 1 is that the value of the dipole moment of the [DBDMA/photo sol-gel matrix] is higher compared to DBDMA molecule in DMF and [DBDMA/sol-gel matrix].…”

Section: Resultsmentioning

confidence: 99%

Photoinduced and Classical Sol-Gel Synthesis: Spectral and Photophysical Behavior of Silica Matrix Doped by Novel Fluorescent Dye Based on Boron Difluoride Complex

2021

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The boron difluoride complex is known as an extraordinary class of fluorescent dyes, which has attracted research interest because of its excellent properties. This article reports the optical properties such as absorption, fluorescence, molar absorptivity, and photo-physical parameters like dipole moment, and oscillator strength of new fluorescent organic dye based on boron difluoride complex 2-(1-(difluoroboraneyl)-1,2-dihydroquinolin-2-yl)-2-(1-methylquinoxalin-2-ylidene) acetonitrile (DBDMA). The spectral characterization of the dye was measured in sol-gel glass, photosol-gel, and organic–inorganic matrices. The absorption and fluorescence properties of DBDMA in sol-gel glass matrices were compared with each other. Compared with the classical sol-gel, it was noticed that the photosol-gel matrix is the best one with immobilized DBDMA. In the latter, a large stokes shift was obtained (97 nm) and a high fluorescence quantum yield of 0.5. Special attention was paid to the addition of gold NPs into the hybrid material. The fluorescence emission intensity of the DBDMA with and without gold nanoparticles in different solid media is described, and that displayed organic–inorganic matrix behavior is the best host.

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Section: Resultsmentioning

confidence: 99%

Photoinduced and Classical Sol-Gel Synthesis: Spectral and Photophysical Behavior of Silica Matrix Doped by Novel Fluorescent Dye Based on Boron Difluoride Complex

2021

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“…In addition to, avoiding lack of toxicity, ammability, ow uctuations, and solvent evaporation problems (2)(3)(4). A lot of laser dyes via applying solid hosts have been broadly announced (5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16). In solid-state dye lasers (SDDL) (17), the day is interacted with matrix through a hydrogen bonds among the dye and hydroxyls.…”

Section: Introductionmentioning

confidence: 99%

Laser Performance and Investigation the Optimal Density Functional and the Dependence of the Basis Sets for (E, E)-2, 5-bis (3, 4-Dimethoxystyryl) Pyrazine (BDP) Molecule.

Sakr

Gawad

El‐Daly

et al. 2021

Preprint

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This manuscript includes some photophysical parameters and some optical properties such as absorption and emission spectra of the (E, E)- 2,5-bis (3,4-dimethoxystyryl) pyrazine (BDP) by applying sol-gel and copolymer matrices. The BDP molecular structure is incorporated in sol-gel matrix and copolymer of methyl methacrylate (MMA) and 2-hydroxy metylmethacrylate (HEMA). In case of sol-gel matrix, the BDP molecular structure has higher quantum yield in addition to photostability maxima. The laser behavior of this molecular structure containing sol-gel matrix is good senior compared to copolymer one via using diode laser (450nm) as pumping laser of power 160 mW. Also, the fluorescence profile of the BDP molecular structure is sensitized via using cadmium sulphide (CdS) quantum dots (QDs) by applying sol-gel host. The optimized structure of the BDP molecule is obtained via applying B3LYP/6-31G(d) level of theory. The electronic absorption and emission spectra of the BDP molecular structure in ethanol solvent, were calculated using time dependent density functional theory (TDDFT) at CAM-B3LYP /6-31G++(d, p) level. The obtained theoretical results were compared to experimental ones.

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“…As of late, a great deal of a work is presented to actualize laser dyes via applying solid-state as a useful option in contrast to the partner of liquid dye lasers owing to their compactness, ease of manufacture, low cost of fabrication, simplicity, and well-being in taking care of and activity, in addition to avoiding lack of toxicity, flammability, flow fluctuations, and solvent evaporation problems [2][3][4]. A lot of laser dyes via applying solid hosts have been broadly announced [5][6][7][8][9][10][11][12][13][14][15]. In solid-state dye lasers (SDDL) [16], the dye is interacted with matrix through hydrogen bonds among the dye and hydroxyls.…”

Section: Introductionmentioning

confidence: 99%

Laser performance and investigation of the optimal density functional and the dependence of the basis sets for (E, E)-2,5-bis (3,4-dimethoxystyryl) pyrazine (BDP) molecule

et al. 2021

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This manuscript includes some photophysical parameters and some optical properties such as absorption and emission spectra of the (E, E)-2,5-bis (3,4-dimethoxystyryl) pyrazine (BDP) by applying sol–gel and copolymer matrices. The BDP molecular structure is incorporated in sol–gel matrix and copolymer of methyl methacrylate (MMA) and 2-hydroxyethyl methacrylate (HEMA). In case of sol–gel matrix, the BDP molecular structure has higher quantum yield in addition to photostability maxima. The laser behavior of this molecular structure containing sol–gel matrix is good senior compared to copolymer one via using diode laser (450 nm) as pumping laser of power 160 mW. Also, the fluorescence profile of the BDP molecular structure is sensitized via using cadmium sulfide (CdS) quantum dots (QDs) by applying sol–gel host. The optimized structure of the BDP molecule is obtained via applying B3LYP/6-31G(d) level of theory. The electronic absorption and emission spectra of the BDP molecular structure in ethanol solvent were calculated using time-dependent density functional theory (TDDFT) at CAM-B3LYP/6-31G + + (d, p) level. The obtained theoretical results were compared to experimental ones.

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Laser Performance of Some Oxazole Laser Dyes in Restricted Matrices

Cited by 10 publications

References 34 publications

Photoinduced and Classical Sol-Gel Synthesis: Spectral and Photophysical Behavior of Silica Matrix Doped by Novel Fluorescent Dye Based on Boron Difluoride Complex

Photoinduced and Classical Sol-Gel Synthesis: Spectral and Photophysical Behavior of Silica Matrix Doped by Novel Fluorescent Dye Based on Boron Difluoride Complex

Laser Performance and Investigation the Optimal Density Functional and the Dependence of the Basis Sets for (E, E)-2, 5-bis (3, 4-Dimethoxystyryl) Pyrazine (BDP) Molecule.

Laser performance and investigation of the optimal density functional and the dependence of the basis sets for (E, E)-2,5-bis (3,4-dimethoxystyryl) pyrazine (BDP) molecule

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